LP3961

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Hochpräziser Low-Dropout-Spannungsregler, 800 mA, mit Aktivierungsfunktion

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Datenblatt

document-pdfAcrobat LP396x 800-mA Fast Ultra-Low-Dropout Linear Regulators datasheet (Rev. J) (Englisch) PDF | HTML

LP3961

AKTIV

Datenblatt

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Produktdetails

Output options

Fixed Output

Iout (max) (A)

0.8

Vin (max) (V)

7

Vin (min) (V)

2.5

Vout (max) (V)

5

Vout (min) (V)

1.8

Fixed output options (V)

1.8, 2.5, 3.3, 5

Noise (µVrms)

150

Iq (typ) (mA)

4

Thermal resistance θJA (°C/W)

40

Rating

Catalog

Load capacitance (min) (µF)

33

Regulated outputs (#)

1

Features

Enable

Accuracy (%)

1

PSRR at 100 KHz (dB)

15

Dropout voltage (Vdo) (typ) (mV)

240

Operating temperature range (°C)

-40 to 125

Output options

Fixed Output

Iout (max) (A)

0.8

Vin (max) (V)

7

Vin (min) (V)

2.5

Vout (max) (V)

5

Vout (min) (V)

1.8

Fixed output options (V)

1.8, 2.5, 3.3, 5

Noise (µVrms)

150

Iq (typ) (mA)

4

Thermal resistance θJA (°C/W)

40

Rating

Catalog

Load capacitance (min) (µF)

33

Regulated outputs (#)

1

Features

Enable

Accuracy (%)

1

PSRR at 100 KHz (dB)

15

Dropout voltage (Vdo) (typ) (mV)

240

Operating temperature range (°C)

-40 to 125

SOT-223 (NDC)

5

45.24 mm² 6.5 x 6.96

TO-263 (KTT)

5

154.8384 mm² 10.16 x 15.24

Input Supply Voltage: 2.5 V to 7 V
Ultra-Low Dropout Voltage
Low Ground Pin Current
Load Regulation of 0.02%
15-µA Quiescent Current in Shutdown Mode
Specified Output Current of 0.8-A DC
Output Voltage Accuracy ±1.5%
ERROR Flag Indicates Output Status (LP3961)
Sense Option Improves Better Load Regulation
(LP3964)
Extremely Low Output Capacitor Requirements
Overtemperature and Overcurrent Protection
−40°C to 125°C Junction Temperature Range

Input Supply Voltage: 2.5 V to 7 V
Ultra-Low Dropout Voltage
Low Ground Pin Current
Load Regulation of 0.02%
15-µA Quiescent Current in Shutdown Mode
Specified Output Current of 0.8-A DC
Output Voltage Accuracy ±1.5%
ERROR Flag Indicates Output Status (LP3961)
Sense Option Improves Better Load Regulation
(LP3964)
Extremely Low Output Capacitor Requirements
Overtemperature and Overcurrent Protection
−40°C to 125°C Junction Temperature Range

The LP396x series of fast ultra-low-dropout linear regulators operate from a 2.5-V to 7-V input supply. A wide range of preset output voltage options are available. These ultra-low dropout linear regulators respond very fast to step changes in load which makes them suitable for low-voltage microprocessor applications. The LP3961 and LP3964 are developed on a CMOS process which allows low quiescent current operation independent of output load current, as well as operation under extremely low dropout conditions.

Dropout Voltage: Ultra-low dropout voltage; typically 24 mV at 80-mA load current and 240 mV at 800-mA load current.

Ground Pin Current: Typically 4 mA at 800-mA load current.

ERROR Flag: ERROR flag goes low when the output voltage drops 10% below nominal value (for LP3961).

SENSE: SENSE pin improves regulation at remote loads (for LP3964).

Precision Output Voltage: Multiple output voltage options are available ranging from 1.2 V to 5 V and adjustable (LP3964), with a specified accuracy of ±1.5% at room temperature, and ±3% over all conditions (varying line, load, and temperature).

The LP396x series of fast ultra-low-dropout linear regulators operate from a 2.5-V to 7-V input supply. A wide range of preset output voltage options are available. These ultra-low dropout linear regulators respond very fast to step changes in load which makes them suitable for low-voltage microprocessor applications. The LP3961 and LP3964 are developed on a CMOS process which allows low quiescent current operation independent of output load current, as well as operation under extremely low dropout conditions.

Dropout Voltage: Ultra-low dropout voltage; typically 24 mV at 80-mA load current and 240 mV at 800-mA load current.

Ground Pin Current: Typically 4 mA at 800-mA load current.

ERROR Flag: ERROR flag goes low when the output voltage drops 10% below nominal value (for LP3961).

SENSE: SENSE pin improves regulation at remote loads (for LP3964).

Precision Output Voltage: Multiple output voltage options are available ranging from 1.2 V to 5 V and adjustable (LP3964), with a specified accuracy of ±1.5% at room temperature, and ±3% over all conditions (varying line, load, and temperature).

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	Typ	Titel		Datum
*	Data sheet	LP396x 800-mA Fast Ultra-Low-Dropout Linear Regulators datasheet (Rev. J)	PDF \| HTML	18 Jun 2015

Design und Entwicklung

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Gehäuse	Pins	Herunterladen
SOT-223 (NDC)	5	Optionen anzeigen
TO-263 (KTT)	5	Optionen anzeigen

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LP3961

Hochpräziser Low-Dropout-Spannungsregler, 800 mA, mit Aktivierungsfunktion

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